The West Tisbury select board will ask Chilmark and Aquinnah to agree to a new, intermunicipal funding formula for the Howes House renovation project in the coming weeks.

The request revises the proposal after the Chilmark and Aquinnah rejected the idea of a three-way split on costs to upgrade the Up-Island Council on Aging’s headquarters.

The new proposed formula would make West Tisbury responsible for 60 per cent of the renovation costs, Chilmark for 30 per cent and Aquinnah for 10 per cent. Preliminary estimates put the project’s price tag at around $10 million to bring the building up to code and into compliance with the Americans with Disabilities Act.

“I could warm up to those numbers,” said Jeffrey (Skipper) Manter, select board member and chair of the Howes House building committee, who initially suggested the even split.

In other business, the select board voted to approve the warrant for the special town meeting on June 13 at 7 p.m. Two minor funding items will appear on the warrant, alongside the town’s share of the regional high school budget.